Quick answers
- Which hospitals does Gwyneth E. Markowitz work at?
- Medicare's official clinician data lists Gwyneth E. Markowitz at 3 hospitals: Lake Health, UH Cleveland Medical Center and UH Regional Hospitals. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gwyneth E. Markowitz see patients?
- Medicare's clinician data lists 2 practice locations, including Willoughby, OH and Mentor, OH. Call before your visit to confirm the address.
- What is Gwyneth E. Markowitz's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Gwyneth E. Markowitz accept Medicare assignment?
- Yes. Medicare's clinician data says Gwyneth E. Markowitz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Gwyneth E. Markowitz offer telehealth?
- Medicare's clinician data says Gwyneth E. Markowitz offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gwyneth E. Markowitz?
- (440) 516-0530, as listed in official Medicare / NPI Registry data.
- What is Gwyneth E. Markowitz's NPI number?
- 1124904479. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gwyneth E. Markowitz works
Medicare's Facility Affiliation Data lists Gwyneth E. Markowitz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lake HealthConcord, OH · Acute Care Hospital · CCN 360098
- UH Cleveland Medical CenterCleveland, OH · Acute Care Hospital · CCN 360137
- UH Regional HospitalsChardon, OH · Acute Care Hospital · CCN 360075
Practice locations
Addresses where Gwyneth E. Markowitz is enrolled with Medicare (CMS data updated 2026-10-02).
- 36500 Euclid AveWilloughby, OH 44094 (440) 516‑0530
- 9485 Mentor AveMentor, OH 44060
Group practices
Medicare enrollment lists Gwyneth E. Markowitz as a member of this group (CMS data updated 2026-10-02).
- Lake Hospital System, Inc.92 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Willoughby
Clinicians with the same Medicare primary specialty in Willoughby, OH — not a recommendation.
Clinician information
| Graduation year | 2025 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1124904479 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians